Indicating device



Oct. 30, 1928.

S. N. HURT INDICATING DEVICE Filed Sept. 28. 1922 l ln/venlo@ I Samuel l Hurt www Egizi.

A aucuns' Patented oct. 3o, 192s.

- UNiTED s'ra'rlis PATENr OFFICE..

SAMUEL unizar, oE ToLE'DdoHro, AssrGNoE To 'roLEnO SCALE COMEANY, or'l f f rISOLEIJQOHIO, A CORPORATION- or NEW JERSEY.

f INDVICATING DEVICE.

Application'led September 28, 1922. Serial No. 591,025. i

This inventionrelatesfto indicating devices, and particularly to indicating devices for weighing scales, and one of its principal Objects is the provision of areliablfe straightline index for co-operation with computing charts, Y y y -v Index lines have heretofore'usually been formed or' sot'trcopper Wire.` Wire for this o 'use .must be. absolutely straight, with no tendency to coil. It is very dificult to handle :straight lengths of soft wire Without bending or kinking, and whena length has once been bent the labor of straightening it usually costs more than the length of'wire isworth,y so that a great deal of waste always occurs in jv-placing indicating lines oil this kind in scales; It is an object of myinvention to provide a mounting for indicating lines which will make it possible to uselines of braided silk or other material which is suiiiciently flexible, be free from liabilityot' kinking, and

which at the same time is so light thatwhen slightlyv stretched, itscatenary is substantially a straight line, evenwhen it is stretched horizontally.

Another object of the invention isthe provision of a device of vthis kind,most of the parts of which arecapableor1 being lmade lby automatic screw machine and punch press operations. n A g Another object is the provision' of a device of this kind in which the parts are sol constructed and arranged that vthey mayl be w quickly and easily assembled `by lunskilled a' ,Y labor;

. Another objectis theprovisionofa device of this class in which the indices. are readily Vcapable o adjustment relative to each other and to the chart with which they co-operate.

Other objects and advantages will heapparent froml `the yfollowing description, in which Vreference is had to the accompanying drawings illustrating preferred embodiments of my invention and wherein similar reference numerals designate similar parts throughout the several views;

In the drawings 5- Figure I is afront elevation of the chart housingof a scale of the cylinder type, parts being removed to show theapplication of one form ot my invention;

Figure II is an enlarged fragmentary perspective view showing the application of the device in greater detail; f

Figure III is a plan view on a still largerv Yscale showinga pairl ofy line mountings attached to the price range plate;

vFigure IVS a sectional .view on a `still further enlarged scale showing the line mounting assembly; l

.Figure V is a yfragmentary side elevational view showing the form of my device adapted for use upon the rear side'otl vthe chart housinggand f N Figure VI is a rear elevational view of the form shown in Figure V. g.

Referring to thedrawings in detail, the

housing 1 within which the movable chart 2 is rotatablyI mounted is provided with a frame 3' which may, if desired, carry electric lighting apparatus and which supports a price range plate 5 and a frontcover plate 6. It is usual to attach. the index line to the frame of the chart housing-1, and the mounting of my invention may be attachedto the frame itso desired.' Ipret'er, however, to attach it to the pricey range plate,for the reason thatit may be preliminarily assembled so that the price range plate, the index line, and

Y, its mountings come as a unit to the workman Y who assembles the scale. The mounting for each end of the index'line 6 consists of'a clip 74 having a'substantially trangularupturned ear 8 through whichis a hole 9, a

kerf 10 being cut into the hole 9 from the edge of the ear 8. Received in the upon the end of a hollow cylindrical member 12,' the opposite end of Whichis open, and telescoped within the open end of the member 12 is a second cylindricall member 13, the

outer end of the member 13 being closedby ay wall 14. An indexline 15 passes through alignedbores inthe boss l1 and thefwall. lll, the end of theline whichvprojects through the wall 14 being knotted, asat'l, to prevent the line from being withdrawn. An expansive spring 17 is interposed between the boss 11 and the wall 1,4. The body of the clip 7 'is provided with a pair of vertically-extending slots 18 anda pair of threaded openings 19. It maybe fastened to the price range vplate 5 by means of screws 20 which pass through the slots 18 and are threaded intoY the price rangeplate 5 or into nuts on the reary hole 9is bossll formed l,

ros

side of the plate. Or, when, as is usually the case, two index lines are employed to avoid errors due to parallax, the screws 20 which pass through theslots 18 may be threaded into the threaded openings 19 of a reversely turned clip the rear side of the price range plate 5, so that both clips are `held in place, as shown in Figures II and III. The price, range, plate. is secured to,V the frame 3 by means of brackets 2l and screws 22 and 23. The screw 23 passes through'a verticallyelongated opening in the plate 5, so the rear index line may be adjusted to proper position relative to the chart by moving thev price range plate 5. The front index line may then bef adjusted to` proper' position by moving the clipy '1". rEhe index lines and their mounti'ngs may be readily removed from the c-lrips 7 by pull-ing the bosses 11 out of the holes 9 against the action of the springs I7, so that the lines may be passed out of the holes 9 through the lie-rfs l0 and the index lines may be replaced by ret-racting the boss ll, passing the lines 15 through the kerfs l0, andallowing the springs 17 to snap the bosses ll into place in the holes 9.

In the form ofdevice shown in Figure V,

the. clip 24k is adapted to be attached to the f end spider 25 of the chart housing frame.

This form of the device may be used in the liront of the housing in place of that already described, and it is particularly adapted for use on the rearside ofthe housing, in Which no price range frame is mounted. In this form of the. device the ear 26 is identical with the ear 8 of the form first described. The

`body of the clipl 24: lies, however, iin a plane parallel to the ea-r so as to be adapted to be .fastened to the housing. spider Q5 by means of rnscrewsf which pass tlirough elongated openings in the clip 24, so that'each-end of the index line may be adjusted vertically.

fhile it will be apparent that the illustraited embodiments of my invent-ion herein disclosed are Well? calculated to adequately fulfill the objects primarily stated, it i's to be understood that the invention is susceptible to varia-tion, modification and cha-nge `Within the spi-rit and* scope ofthe subjoined claims- Having described my invention, I claim:

- L. In a device of the class described, in combination, a relatively movable chart andl index, said' index consisting of a flexible line and a line holder comprising a cylinder having one end open and'its other end closed, a `l-nacket for supporting said cylinder, a secforate ond cylinder having one end' o Den and telescoped' Within the first said cylinc er, the other end of the second cylinder being closed, an expansive j spring interposed between the closed ends of said cylinders, said closed ends being perforated, sai'd line being connected to said second cylinder and passing through the yperforations in said closed ends.

` \vithin the iirst said cylinder, the other end of the secondV cylinder being closed, and an expansive spring interposed between the closed ends of said cylinders, said closedy ends being perforated to permita 'line to be passed theretlfirough, the closed end of the first said cylinder having a b oss lengaged within the opening in said ear,

el. Ina device of the class described, in combination, a clip havinga bod portion and an ear, the body portion of sai clip being. provided with an elone'ated slotV adapted'lo receive a screw wherecby said clip .may be fixed in adjusted position, said ear having an opening and a kerf connecting said opening with the edge ofsaid ear, a member having a perd boss received in said opening, and resilient means for stretchingT -a line through said perforated boss.r

5. In a device of the class described, in combination, a supporting plate, a pair of identical clips, each. of said clips comprising a body portion and an ear, said body'portions being provided with slots and threaded openings, the threaded openings of said clipsr being adapted each to register with a slot of the other clip when one of' said clipsis reversed relatively to the other, and means for connecting index lines to said ears.

SAMUEL N. IIURT; 

